Buttons including light, cook time, etc will work infrequently

Basically sometimes you can turn the light on and off just fine, other times the button will not respond leaving the light, fan etc on or off until you just unplug the thing...obviously the panel behind the buttons isn't working well/inconsistently. We had a repair guy out some time ago for something else and he said the repair part was so expensive I might as well buy another one...but I found a similar model that is working...could I use parts from it? Does anyone know if the guts/electronics are compatible? Mine is a mh6150xmt and the one I'm looking at is a MH6140XK. Does anyone know what the letters and numbers stand for?

Good news, even though the electronic controls (circuit boards) are different, the touch pads for the two units are the same. As far as the nomenclature behind the model numbers/letters, this information is rarely known or needed.

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Related Questions:

The electronics on your control panel have gone bye bye. That is why to this date I have always preferred the nukes with the old fashioned timer. They always work and when anything goes it is the little motor that can be easily replaced at nominal cost..

Newer is not always better. Might look better but .....................

try resetting the clock. If it is digital, push the clock button and then the number buttons untill you have the proper time displayed...then push the clock button again. If your clock and timer are manual, try pushing in the clock lever and turning it 1/4 turn. If this works it would indicate that your timer has a start and finish time and that the oven is not working because the clock has rotated around to the finish time.

i cant work out if its broken or not over the years i do remember seeing a sanyo microwave that would not cook untill the time was set though have not seen another since (cause its a silly idea) but try setting the time and it might work

a defrost on the mic.
this button is a selector of power really, it cyles the heat on and off keeping the actual cooking energy to minimun, just enough to knock down ice crytals
but make no mistake it is working the same just a lower power setting,
you could do the same thing by selecting power level 2-3 for longer times

Don't know this particular model, but it sounds like you are just pressing the time buttons for cooking and not actually setting the time clock which is what it's asking for. Are you following the instructions for setting time as detailed in your instruction book?

COOKING IN ONE STAGE1. Press the POWER button; the Microwave and HighCook indicators will light and “PL 10” will light in thedisplay.2. Press the POWER button different times to set thedesired power; the display will show the percentageyou chose. If selecting power level 70%-10%, theLow Cook indicator will light instead of the HighCook indicator.3. Press number keys to set the desired cooking time.OPERATION(CONTINUED)4. Press the START/+30SEC. button to start cooking;the Microwave and one of the Cook indicators willblink and the display will countdown the remainingcooking time in minutes and seconds. It will beepfive times when cooking is completed.We're
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